CDL License Impact

What happens if you get an Avon DUI and you are a commercial driver's license (CDL) holder? A DUI charge or conviction can have a significant impact on your driver's license and subsequently your job if you drive for a living. Learn more about the consequences of a DUI that a CLD holder will face and how to avoid them here.


The effects of an Avon DUI on a commercial driver’s license (CDL) are very large. A CDL license is needed in Connecticut to drive commercial vehicles such as large trucks, buses, and trucks carrying hazardous materials. There are higher standards for CDL drivers than there are for the average driver. This is because the size and cargo of commercial vehicles is greater than for an average-sized vehicle. Commercial vehicles can cause greater destruction than regular vehicles can, so the DMV wants to make sure that CDL drivers take their job seriously and are responsible on the roads. As such, a DUI charge can have negative impacts for a CDL holder. Learn more here.

CDL License Disqualification

A CDL license can be disqualified for a year if the driver refuses to take a blood alcohol content (BAC) test or fails a BAC test, or if they are convicted of a DUI. Disqualification will occur for three years if the DUI offense happens while the driver is transporting hazardous materials needing special placards under federal law.

A CDL can be disqualified for three reasons: 1) A BAC test refusal independent of the vehicle type being driven at the time of the offense, 2) A BAC test result of 0.04% or more while driving a commercial vehicle or 0.08% while driving any other vehicle, and 3) Any DUI conviction coming from the driver being under the influence of alcohol or drugs.

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Subsequent DUIs will have even more serious implications. A second, third, or subsequent DUI will result in CDL license disqualification for life. However, this type of license can be reinstated after 10 years by applying to have the license reinstated and after completion of a voluntary addiction treatment program. DUI arrests and BAC test failures or refusals in any other state can allow the DMV commissioner to disqualify a Connecticut CDL as well.

Federal Regulations

CDL truck drivers must follow the regulations of the Federal Motor Carrier Safety Administration in terms of driving while using drugs or alcohol as well as individual state regulations. The rules are very strict and set a BAC limit of 0.04% for CDL drivers regardless of what kind of vehicle they are operating. This is due to the safety risks involved in driving large and sometimes dangerous loads of hazardous materials and cargo. FMCSA rules also express that refusing to submit a blood alcohol test will mean the driver is automatically found guilty of driving while intoxicated.

Having a DUI defense attorney who has worked with CDL holders is even more important for CDL drivers who have been arrested for an Avon DUI. Contact Lady DUI if you need an attorney to help you with your DUI charge.

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